2 layers38.1 × 38.9 mm
STM32 Keyboard
AeternusCo/STM32-Reference-Keyboard
This schematic has not been officially tested. It follows best practices and should work, but please confirm your design before placing a large order!
47 parts16Unlicense
2 layers23.6 × 19.7 mm
NormalTrueBypass PIC
asumo-1xts/NormalTrueBypass_PICA project for a true-bypass with an DIP8 PIC microcontroller.
- Size
- 23.6 × 19.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 17
- Pads
- 53
- Tracks, vias
- 70, 5
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 3 Jan 2026
- Updated
- 21 Jan 2026
Overview
NormalTrueBypass PIC is an open-source printed circuit board by asumo-1xts, from the asumo-1xts/NormalTrueBypass_PIC repository on GitHub, published under the MIT licence. It is a 2-layer board of 23.6 × 19.7 mm with 17 parts on 17 nets, routed with 70 tracks and 5 vias.
It is built around the CD4148WP. Its parts include 5 resistors, 3 ICs, 3 connectors, 2 capacitors and 2 diodes. It belongs with the PIC boards of this library.
Main components
1Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R2, R4 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 220 | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 2N3904 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | 4007 | Diode_SMD:D_SOD-123 | D2 |
| 1 | 47uF | Capacitor_SMD:C_1206_3216Metric | C2 |
| 1 | 4k7 | Resistor_SMD:R_0805_2012Metric | R5 |
| 1 | CD4148W | Diode_SMD:D_SOD-323 | D1 |
| 1 | Conn_01x07_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Conn_01x07_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | Conn_01x07_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | MC78L05_SOT89 | Package_TO_SOT_SMD:SOT-89-3 | U3 |
| 1 | PC817 | Package_DIP:DIP-4_W7.62mm | U1 |
| 1 | PIC12F675-xP | Package_DIP:DIP-8_W7.62mm | U2 |
| 1 | Relay | Relay_SMD:Relay_DPDT_Omron_G6K-2G-Y | K1 |
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Questions
How big is the NormalTrueBypass PIC PCB?
It measures 23.6 × 19.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the NormalTrueBypass PIC use?
17 parts, built around the CD4148WP. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the NormalTrueBypass PIC KiCad files?
From the asumo-1xts/NormalTrueBypass_PIC repository on GitHub, at the commit this page was made from: the board is KiCad/NormalTrueBypass_PIC.kicad_pcb and its schematic KiCad/NormalTrueBypass_PIC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the NormalTrueBypass PIC design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).